""ET EXPLOIT VisualDoor Sonicwall SSL VPN Exploit Attempt""

SID: 2031543

Revision: 2

Class Type: attempted-admin

Metadata: attack_target Client_Endpoint, created_at 2021_01_25, cve CVE_2014_6271, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, signature_severity Major, updated_at 2021_01_25

Reference:

  • cve

  • 2014-6271

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "/cgi-bin/jarrewrite.sh"

  • Value: "|28 29 20 7b|"

Within:

PCRE: "/^User-Agent\x3a\x20[^\r\n]+\x28\x29\x20\x7b/Hmi"

Special Options:

  • fast_pattern

  • http_uri

  • http_header

source